Remote Connection - Extron electronics MPS 112 User Manual

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Installation, cont'd

Remote connection

For RS-232 control, use a control cable with only pins 2, 3, and 5 connected.
Otherwise, either cut the wires to the other pins in hard-shelled connectors or
remove the unneeded pins from molded plugs. See chapter 5, Programmer's Guide,
for definitions of the SIS commands and details on how to install and use the
control software.
The RS-232 connector is a 9-pin D female with the following pin designations:
Pin
6, 7
8, 9
The protocol is as follows:
• 9600 baud
• 8-bit data
• 1 stop bit
• no parity
• no flow control.
2-8
MPS Series • Installation
The cable used to connect the RS-232/Remote port to a computer or control
system may need to be modified by removing pins or cutting wires. If
unneeded pins are connected, the switcher may hang up.
RS-232 function
1
2
Tx
3
Rx
4
5
Gnd
Description
No connection
Transmit data
Receive data
No connection
Signal ground
No connection
No connection
5
1
9
6
DB9 Pin Locations
Female

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